have a problem that just can't solve car will start and run no problems after shutdown it might be 15-30 minutes before it will start again checked all relays,fuel pump, pump pressure always have spark always have fuel seems to be missing injector pulse check voltage and grounds to ECM and all seems fine at any time a small amount of starting fluid will fire it up and it runs great till you shut if off and try to restart then same thingI've read other post and checked everything I could find on related post

I had a similar problem that went away for about a year when I replaced the distributor. Problem is now back, and the distributor checks out fine.

I'm at a total loss, and the car is all but a big giant paperweight because I can't drive it anywhere.

Have you tested your ignition module? Take it off and take it to autozone theyll test it for free. $25 or something like that for a new one. I had some starting issues to after two days of tuning and checking everything cause car would run like crap like not all the cylinders were firing when it did turn on and i decided to check that out and there it was. Good luck.

Keep in mind you can get good (more expensive) ACDelco modules that are known to be the better choice, or you can get various aftermarket (known to be crap) modules.

Everything works for SOMEbody, but as a rule, ACDelco/GM modules are by FAR the better choice.